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MySQL number-string formatting to pad zeros on the left of a string with numbers after a slash
Let us first create a table −
mysql> create table DemoTable1369 -> ( -> BatchId varchar(20) -> ); Query OK, 0 rows affected (0.46 sec)
Insert some records in the table using insert command. We have inserted numbers here separated by a slash −
mysql> insert into DemoTable1369 values('19/5'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1369 values('19/78'); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1369 values('19/567'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable1369 values('19/1234'); Query OK, 1 row affected (0.11 sec)
Display all records from the table using select statement −
mysql> select * from DemoTable1369;
This will produce the following output −
+---------+ | BatchId | +---------+ | 19/5 | | 19/78 | | 19/567 | | 19/1234 | +---------+ 4 row>
Here is the query for number-string formatting. We have set zeros after slash to fill the field. The total field width is determined by the highest field value i.e. 4 here for number “1234” −
mysql> select -> concat(left(BatchId,3), lpad(substring(BatchId, 4), 4, '0')) -> from DemoTable1369;
This will produce the following output −
+--------------------------------------------------------------+ | concat(left(BatchId,3), lpad(substring(BatchId, 4), 4, '0')) | +--------------------------------------------------------------+ | 19/0005 | | 19/0078 | | 19/0567 | | 19/1234 | +--------------------------------------------------------------+ 4 rows in set (0.00 sec)
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